snprintf函数第二个参数应该为buf_len + 1 (oceanbase#290)

### What problem were solved in this pull request? 计算程序名称时，snprintf函数第二个参数应该为buf_len + 1
hnwyllmm · Oct 16, 2023 · 2e3394c · 2e3394c
1 parent 09fe80d
commit 2e3394c
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/deps/common/os/process.cpp b/deps/common/os/process.cpp
@@ -48,7 +48,7 @@ std::string get_process_name(const char *prog_name)
     std::cerr << "Failed to alloc memory for program name." << SYS_OUTPUT_FILE_POS << SYS_OUTPUT_ERROR << std::endl;
     return "";
   }
-  snprintf(buf, buf_len, "%s", prog_name);
+  snprintf(buf, buf_len + 1, "%s", prog_name);//第二个参数需为buf_len + 1
 
   process_name = basename(buf);